<template>
  <div>
    <!-- <h3>用户列表组件</h3> -->
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>用户管理</el-breadcrumb-item>
        <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片试图区域 -->
    <el-card>
         <!-- 搜索与添加区域 -->
        <el-row :gutter="20">
          <el-col :span="8">
            <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserLists">
               <el-button slot="append" icon="el-icon-search" @click="getUserLists"></el-button>
            </el-input>
          </el-col>
          <el-col :span="4">
            <el-button type="primary" @click="addDialogVisile = true">添加用户</el-button>
          </el-col>
        </el-row>
        <!-- 用户列表区域 -->
        <el-table :data="usersList" border stripe>
          <el-table-column label="#"  type="index"></el-table-column>
          <el-table-column label="姓名" prop="username"></el-table-column>
          <el-table-column label="邮箱" prop="email"></el-table-column>
          <el-table-column label="电话" prop="mobile"></el-table-column>
          <el-table-column label="角色" prop="role_name"></el-table-column>
          <el-table-column label="状态">
            <template v-slot="{row}">
                 <!-- {{row}} -->
                 <el-switch v-model="row.mg_state" @change="usersStateChange(row)">
                 </el-switch>
            </template>
          </el-table-column>
          <el-table-column label="操作" width="180px">
            <template v-slot="{row}">
              <!-- 修改 -->
                <el-button type="primary" icon="el-icon-edit" size="mini" circle @click="showEditDialog(row.id)"></el-button>
                <!-- 删除 -->
                <el-button type="danger" icon="el-icon-delete" size="mini" circle @click="removeUserById(row.id)"></el-button>
                <!-- 分配角色 -->
                <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false" >
                    <el-button type="warning" icon="el-icon-setting" size="mini" circle @click="setRoles(row)">
                    </el-button>
                </el-tooltip> 
            </template>
          </el-table-column>
        </el-table>

        <!-- 分页区域 -->
        <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum"
            :page-sizes="[1, 2, 5, 10]"
            :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper"
            :total="total">
       </el-pagination>
         
    </el-card>

<!-- 这是添加用户的提示框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisile"
      width="50%" @close="addDialogClosed">
      <!-- 内容主题区域 -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisile = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户的对话框 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisilble"
      width="50%"
      @close="editDialogClosed">
      <el-form ref="editFormRef" :model="editForm" :rules="addFormRules" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisilble = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色对话框 -->
    <el-dialog
  title="分配角色"
  :visible.sync="setRolesDialog"
  width="50%" @close="setDialogClosed">
  <div>
    <p>当前的用户：{{userInfo.username}}</p>
    <p>当前的角色：{{userInfo.role_name}}</p>
    <p>分配新角色：
      <el-select v-model="selectedRoleId" placeholder="请选择">
        <el-option
          v-for="item in rolesList"
          :key="item.id"
          :label="item.roleName"
          :value="item.id">
        </el-option>
      </el-select>
    </p>
  </div>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRolesDialog = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
</el-dialog>

  </div>
</template>

<script>
export default {
   data() {
  //  验证邮箱的规则
    var checkEmail = (rules,value,cb) => {
        const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
        if(regEmail.test(value)){
           return cb()
        }
        cb(new Error('请输入合法的邮箱'))
    }
    var checkMbile = (rules,value,cb) => {
        const regMobile = /^1(3[0-9]|4[01456879]|5[0-3,5-9]|6[2567]|7[0-8]|8[0-9]|9[0-3,5-9])d{8}$/
        if(regMobile.test(value)){
           return cb()
        }
        cb(new Error('请输入合法的手机号'))
    }
    return {
       //获取用户列表的参数对象
       queryInfo: {
           query: '',
           pagenum: 1,
           pagesize: 1
       },
       usersList: [],
       total: 0,
      // 控制对话框的显示和隐藏
       addDialogVisile: false,
       addForm: {
          username: '',
          password: '',
          email: '',
          mobile: ''
       },
      //  添加表单验证的规则对象
       addFormRules: {
          username: [
             {required: true,message: '请输入用户名',trigger: 'blur'},
             {min: 3,max: 10,message: '用户名的长度在3到10个字符之间',trigger: 'blur'}
          ],
          password: [
             {required: true,message: '请输入密码',trigger: 'blur'},
             {min: 6,max: 115,message: '密码的长度在6到15个字符之间',trigger: 'blur'}
          ],
          email: [
             {required: true,message: '请输入邮箱',trigger: 'blur'},
             {validator: checkEmail,trigger: 'blur'}
            //  {min: 6,max: 115,message: '邮箱的长度在6到15个字符之间',trigger: 'blur'}
          ],
          mobile: [
             {required: true,message: '请输入手机号',trigger: 'blur'},
            //  {validator: checkMbile,trigger: 'blur'}
            //  {min: 6,max: 115,message: '邮箱的长度在6到15个字符之间',trigger: 'blur'}
          ],

       },
      // 这是控制修改用户对话框的显示和隐藏
       editDialogVisilble: false,
      //  查询到的用户信息对象
       editForm: {
          
       },
      //  控制角色对话框的显示和隐藏
       setRolesDialog: false,
      //  需要被分配角色用户信息
       userInfo: {},
      //  所有角色的数据列表
       rolesList: [],
      //  已选中的角色id
       selectedRoleId: ''
    }
   },
   created() {
    this.getUserLists()
   },
   methods: {
      async getUserLists(){
        const {data:res}  = await this.$http.get('users',{params: this.queryInfo})
        // console.log(res)
        if(res.meta.status !== 200) return this.$message.error('获取用户列表失败！ ')
        this.usersList = res.data.users
        this.total = res.data.total
        console.log(this.usersList)
      },
    //  监听pagesize改变
      handleSizeChange(newSize){
         console.log(newSize)
         this.queryInfo.pagesize = newSize
         this.getUserLists()
      },
      // 监听页码值
      handleCurrentChange(newPage){
          console.log(newPage)
          this.queryInfo.pagenum = newPage
          this.getUserLists()
      },
      async usersStateChange(userInfo){
        console.log(userInfo)
        const {data:res} = await  this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
        if(res.meta.status !== 200) {
           userInfo.mg_state = !userInfo.mg_state
           return this.$message.error('更新用户状态失败！')
        }
        this.$message.success('更新用户状态成功！')
      },


      // 监听添加用户对话框的关闭
      addDialogClosed(){
         this.$refs.addFormRef.resetFields()
      },
      //点击按钮添加新用户
      addUser(){
         this.$refs.addFormRef.validate(async valid => {
            console.log(valid)
            if(!valid) return
            // 可以发起添加用户的网络请求了
            const {data:res} = await this.$http.post('users',this.addForm)
            if(res.meta.status !== 201){
               this.$message.error('添加用户失败！')
            }
            this.$message.success('添加用户成功！')
            // 隐藏添加用户的对话框
            this.addDialogVisile = false
            this.getUserLists()
         })
      },
      // 这是编辑用户的对话框
      async showEditDialog(id){
          // console.log(id)
          const {data:res} = await this.$http.get('users/'+ id)
          if(res.meta.status !== 200) return this.$message.error('获取用户信息失败')
          this.editForm = res.data
          this.editDialogVisilble = true
          
      },

//监听修改对话框的关闭事件
      editDialogClosed(){
         this.$refs.editFormRef.resetFields()
      },
      // 修改用户信息并验证
      editUserInfo(){
         this.$refs.editFormRef.validate(async valid => {
            // console.log(valid)
            if(!valid) return
            // 可以发起修改用户的网络请求了
            const {data:res} = await this.$http.put('users/'+ this.editForm.id,{
                email: this.editForm.email,
                mobile: this.editForm.mobile
            })
            if(res.meta.status !== 200){
              return  this.$message.error('修改用户失败！')
            }
            this.$message.success('修改用户成功！')
            // 隐藏修改用户的对话框
            this.editDialogVisilble = false
            // 刷新数据列表
            this.getUserLists()
         })
      },
      // 根据id删除对应的用户信息
      async removeUserById(id){
          console.log(id)
          // 询问用户是否删除
         const confirmResult =await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)
        // 如果用户取消了删除，则返回值为字符串cancle
        // console.log(confirmResult)
        if(confirmResult !== 'confirm'){
            return this.$message.info('已取消删除')
        }
        const {data:res} = await  this.$http.delete('users/' + id)
        if(res.meta.status !== 200){
           return this.$message.error('删除用户失败')
        }
        this.$message.success('删除用户成功')
        this.getUserLists()
      },
      //展示分配角色的对话框
      async setRoles(useInfo){
        //  console.log(useInfo)
         this.userInfo = useInfo

        //  展示对话框之前获取角色列表
        const {data:res} =  await this.$http.get('roles')
        if(res.meta.status !== 200){
            return this.$message.error('获取角色列表失败')
        }
        this.rolesList = res.data
         this.setRolesDialog = true
      },

//  点击按钮分配角色  该接口失败
     async  saveRoleInfo(){
          if(!this.selectedRoleId){
              return this.$message.error('请选择要分配的角色')
          }
          console.log(this.selectedRoleId)
          console.log(this.userInfo.id)

          const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,{rid: this.selectedRoleId})
          if(res.meta.status !== 200){
               return this.$message.error('更新角色失败')
          }
          this.$message.success('更新角色成功！')
          this.getUserLists()
          this.setRolesDialog = false
      },

//监听分配角色对话框的关闭事件
      setDialogClosed(){
           this.selectedRoleId = ''
           this.userInfo = {}
      }
      

   },



}
</script>

<style lang="less" scoped>
    .el-table{
      margin-top: 15px;
      font-size: 12px;
    }
    .el-pagination{
       margin-top: 15px;
    }
</style>